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Finding the Fourth Proportional to 104,802.81, 144,627 and 57,056.06

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Solution

The fourth proportional to 104,802.81, 144,627 and 57,056.06 is: 78,736.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,802.81 : 144,627 = 57,056.06 : x
  2. Step 2: Convert to fraction form
    104,802.81/144,627 = 57,056.06/x
  3. Step 3: Cross multiply
    104,802.81x = 144,627 × 57,056.06
  4. Step 4: Simplify right side
    104,802.81x = 8,251,846,066.49
  5. Step 5: Solve for x
    x = 8,251,846,066.49/104,802.81
  6. Step 6: Final answer
    x = 78,736.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.